Seminars and colloquia

E.g., Nov 26, 2022

Elizabeth Xiao

On the anisotropy theorem of Papadakis and Petrotou

December 6, 2022

ESB 4127

Papadakis and Petrotou showed that anisotropy of a quadratic form implies the Hard Lefschetz theorem for simplicial spheres in characteristic 2. In this talk, I will explain how we used an integration map to define a mixed volume on spheres, which is linear over a connected ... Read more
  • Discrete mathematics

Federico Scavia

Degenerate fourfold Massey products over arbitrary fields

December 7, 2022

We prove that, for all fields F of characteristic different from 2 and all a,b,c in F, the mod 2 Massey product <a, b, c, a> vanishes as soon as it is defined. For every field E of characteristic different form 2, we construct a field F containing E and a,b,c,d in F such ... Read more
  • Algebra and Algebraic geometry

Merlin Pelz

UBC Math
Math Bio Seminar - Pelz

December 7, 2022

ESB 4133

  • Mathematical Biology

Payman Eskandari

University of Winnipeg
PIMS-UBC Rising Stars Colloquium

December 9, 2022

UBC Math

Chi Hoi (Kyle) Yip

Blocking plane curves over finite fields

December 12, 2022

MATH 126

Let F_q be a finite field, and consider the set P^2(F_q) of all F_q-points in the projective plane. Originating from game theory, a subset B of P^2(F_q) is called a blocking set if B meets every line defined over F_q. Algebraic curves, especially those defined by Redei-type ... Read more
  • Algebra and Algebraic geometry

Ryan Bushling


December 13, 2022

  • Harmonic Analysis and Fractal Geometry

Andrew Lawrie

Andrew Lawrie Title TBA

December 13, 2022

Zoom talk

Abstract TBA Read more
  • Differential geometry
  • Mathematical Physics
  • Partial Differential Equations

Shiyun Wang

University of Southern California
The e-positivity of the chromatic symmetric functions and the inverse Kostka matrix

January 24, 2023


This paper extends the current investigations on the famous long-time open conjectures by Stanley-Stembridge and Shareshian–Wachs with the q-parametrized version. We expand the chromatic symmetric functions for Dyck paths of bounce number three in the elementary symmetric ... Read more
  • Discrete mathematics